Home / 101,739.04-140,397.36-56,417.20

Finding the Fourth Proportional to 101,739.04, 140,397.36 and 56,417.20

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Solution

The fourth proportional to 101,739.04, 140,397.36 and 56,417.20 is: 77,854.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,739.04 : 140,397.36 = 56,417.20 : x
  2. Step 2: Convert to fraction form
    101,739.04/140,397.36 = 56,417.20/x
  3. Step 3: Cross multiply
    101,739.04x = 140,397.36 × 56,417.20
  4. Step 4: Simplify right side
    101,739.04x = 7,920,825,938.59
  5. Step 5: Solve for x
    x = 7,920,825,938.59/101,739.04
  6. Step 6: Final answer
    x = 77,854.34

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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.