Home / 138,559,100.76-191,203,779.06-75,835,070.46

Finding the Fourth Proportional to 138,559,100.76, 191,203,779.06 and 75,835,070.46

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Solution

The fourth proportional to 138,559,100.76, 191,203,779.06 and 75,835,070.46 is: 104,648,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,559,100.76 : 191,203,779.06 = 75,835,070.46 : x
  2. Step 2: Convert to fraction form
    138,559,100.76/191,203,779.06 = 75,835,070.46/x
  3. Step 3: Cross multiply
    138,559,100.76x = 191,203,779.06 × 75,835,070.46
  4. Step 4: Simplify right side
    138,559,100.76x = 14,499,952,057,233,372
  5. Step 5: Solve for x
    x = 14,499,952,057,233,372/138,559,100.76
  6. Step 6: Final answer
    x = 104,648,139.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.