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Finding the Fourth Proportional to 156,862.98, 216,459.54 and 88,881.30

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Solution

The fourth proportional to 156,862.98, 216,459.54 and 88,881.30 is: 122,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,862.98 : 216,459.54 = 88,881.30 : x
  2. Step 2: Convert to fraction form
    156,862.98/216,459.54 = 88,881.30/x
  3. Step 3: Cross multiply
    156,862.98x = 216,459.54 × 88,881.30
  4. Step 4: Simplify right side
    156,862.98x = 19,239,205,312.60
  5. Step 5: Solve for x
    x = 19,239,205,312.60/156,862.98
  6. Step 6: Final answer
    x = 122,649.75

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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.