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Finding the Fourth Proportional to 157,146.84, 216,867.96 and 85,529.46

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Solution

The fourth proportional to 157,146.84, 216,867.96 and 85,529.46 is: 118,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,146.84 : 216,867.96 = 85,529.46 : x
  2. Step 2: Convert to fraction form
    157,146.84/216,867.96 = 85,529.46/x
  3. Step 3: Cross multiply
    157,146.84x = 216,867.96 × 85,529.46
  4. Step 4: Simplify right side
    157,146.84x = 18,548,599,510.10
  5. Step 5: Solve for x
    x = 18,548,599,510.10/157,146.84
  6. Step 6: Final answer
    x = 118,033.55

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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.