Home / 138,801.24-191,547.24-75,140.40

Finding the Fourth Proportional to 138,801.24, 191,547.24 and 75,140.40

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Solution

The fourth proportional to 138,801.24, 191,547.24 and 75,140.40 is: 103,694.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,801.24 : 191,547.24 = 75,140.40 : x
  2. Step 2: Convert to fraction form
    138,801.24/191,547.24 = 75,140.40/x
  3. Step 3: Cross multiply
    138,801.24x = 191,547.24 × 75,140.40
  4. Step 4: Simplify right side
    138,801.24x = 14,392,936,232.50
  5. Step 5: Solve for x
    x = 14,392,936,232.50/138,801.24
  6. Step 6: Final answer
    x = 103,694.58

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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.