Home / 102,718.47-141,841.66-64,544.16

Finding the Fourth Proportional to 102,718.47, 141,841.66 and 64,544.16

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Solution

The fourth proportional to 102,718.47, 141,841.66 and 64,544.16 is: 89,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,718.47 : 141,841.66 = 64,544.16 : x
  2. Step 2: Convert to fraction form
    102,718.47/141,841.66 = 64,544.16/x
  3. Step 3: Cross multiply
    102,718.47x = 141,841.66 × 64,544.16
  4. Step 4: Simplify right side
    102,718.47x = 9,155,050,797.71
  5. Step 5: Solve for x
    x = 9,155,050,797.71/102,718.47
  6. Step 6: Final answer
    x = 89,127.60

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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.