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Finding the Fourth Proportional to 101,557.65, 140,417.09 and 88,946.25

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Solution

The fourth proportional to 101,557.65, 140,417.09 and 88,946.25 is: 122,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,557.65 : 140,417.09 = 88,946.25 : x
  2. Step 2: Convert to fraction form
    101,557.65/140,417.09 = 88,946.25/x
  3. Step 3: Cross multiply
    101,557.65x = 140,417.09 × 88,946.25
  4. Step 4: Simplify right side
    101,557.65x = 12,489,573,591.41
  5. Step 5: Solve for x
    x = 12,489,573,591.41/101,557.65
  6. Step 6: Final answer
    x = 122,980.14

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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.