Home / 113,070.98-156,006.09-72,808.04

Finding the Fourth Proportional to 113,070.98, 156,006.09 and 72,808.04

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Solution

The fourth proportional to 113,070.98, 156,006.09 and 72,808.04 is: 100,454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,070.98 : 156,006.09 = 72,808.04 : x
  2. Step 2: Convert to fraction form
    113,070.98/156,006.09 = 72,808.04/x
  3. Step 3: Cross multiply
    113,070.98x = 156,006.09 × 72,808.04
  4. Step 4: Simplify right side
    113,070.98x = 11,358,496,860.93
  5. Step 5: Solve for x
    x = 11,358,496,860.93/113,070.98
  6. Step 6: Final answer
    x = 100,454.58

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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.