Home / 138,801.93-191,547.27-75,139.73

Finding the Fourth Proportional to 138,801.93, 191,547.27 and 75,139.73

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Solution

The fourth proportional to 138,801.93, 191,547.27 and 75,139.73 is: 103,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,801.93 : 191,547.27 = 75,139.73 : x
  2. Step 2: Convert to fraction form
    138,801.93/191,547.27 = 75,139.73/x
  3. Step 3: Cross multiply
    138,801.93x = 191,547.27 × 75,139.73
  4. Step 4: Simplify right side
    138,801.93x = 14,392,809,192.30
  5. Step 5: Solve for x
    x = 14,392,809,192.30/138,801.93
  6. Step 6: Final answer
    x = 103,693.15

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1.5x scale

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.