Home / 138,666.23-208,030.45-43,902.08

Finding the Fourth Proportional to 138,666.23, 208,030.45 and 43,902.08

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Solution

The fourth proportional to 138,666.23, 208,030.45 and 43,902.08 is: 65,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,666.23 : 208,030.45 = 43,902.08 : x
  2. Step 2: Convert to fraction form
    138,666.23/208,030.45 = 43,902.08/x
  3. Step 3: Cross multiply
    138,666.23x = 208,030.45 × 43,902.08
  4. Step 4: Simplify right side
    138,666.23x = 9,132,968,709.25
  5. Step 5: Solve for x
    x = 9,132,968,709.25/138,666.23
  6. Step 6: Final answer
    x = 65,862.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.