Home / 113,988.18-157,300.47-63,687.18

Finding the Fourth Proportional to 113,988.18, 157,300.47 and 63,687.18

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Solution

The fourth proportional to 113,988.18, 157,300.47 and 63,687.18 is: 87,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,988.18 : 157,300.47 = 63,687.18 : x
  2. Step 2: Convert to fraction form
    113,988.18/157,300.47 = 63,687.18/x
  3. Step 3: Cross multiply
    113,988.18x = 157,300.47 × 63,687.18
  4. Step 4: Simplify right side
    113,988.18x = 10,018,023,346.97
  5. Step 5: Solve for x
    x = 10,018,023,346.97/113,988.18
  6. Step 6: Final answer
    x = 87,886.51

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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.