Home / 116,088.57-160,134.18-72,999.71

Finding the Fourth Proportional to 116,088.57, 160,134.18 and 72,999.71

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Solution

The fourth proportional to 116,088.57, 160,134.18 and 72,999.71 is: 100,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,088.57 : 160,134.18 = 72,999.71 : x
  2. Step 2: Convert to fraction form
    116,088.57/160,134.18 = 72,999.71/x
  3. Step 3: Cross multiply
    116,088.57x = 160,134.18 × 72,999.71
  4. Step 4: Simplify right side
    116,088.57x = 11,689,748,701.09
  5. Step 5: Solve for x
    x = 11,689,748,701.09/116,088.57
  6. Step 6: Final answer
    x = 100,696.81

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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.