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Finding the Fourth Proportional to 156,602.50, 216,030.60 and 99,144.52

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Solution

The fourth proportional to 156,602.50, 216,030.60 and 99,144.52 is: 136,768.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,602.50 : 216,030.60 = 99,144.52 : x
  2. Step 2: Convert to fraction form
    156,602.50/216,030.60 = 99,144.52/x
  3. Step 3: Cross multiply
    156,602.50x = 216,030.60 × 99,144.52
  4. Step 4: Simplify right side
    156,602.50x = 21,418,250,142.31
  5. Step 5: Solve for x
    x = 21,418,250,142.31/156,602.50
  6. Step 6: Final answer
    x = 136,768.25

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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.