Home / 112,341.90-155,008.98-71,522.36

Finding the Fourth Proportional to 112,341.90, 155,008.98 and 71,522.36

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Solution

The fourth proportional to 112,341.90, 155,008.98 and 71,522.36 is: 98,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,341.90 : 155,008.98 = 71,522.36 : x
  2. Step 2: Convert to fraction form
    112,341.90/155,008.98 = 71,522.36/x
  3. Step 3: Cross multiply
    112,341.90x = 155,008.98 × 71,522.36
  4. Step 4: Simplify right side
    112,341.90x = 11,086,608,070.79
  5. Step 5: Solve for x
    x = 11,086,608,070.79/112,341.90
  6. Step 6: Final answer
    x = 98,686.31

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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.