Home / 157,566.80-236,153.10-78,703.04

Finding the Fourth Proportional to 157,566.80, 236,153.10 and 78,703.04

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Solution

The fourth proportional to 157,566.80, 236,153.10 and 78,703.04 is: 117,956.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,566.80 : 236,153.10 = 78,703.04 : x
  2. Step 2: Convert to fraction form
    157,566.80/236,153.10 = 78,703.04/x
  3. Step 3: Cross multiply
    157,566.80x = 236,153.10 × 78,703.04
  4. Step 4: Simplify right side
    157,566.80x = 18,585,966,875.42
  5. Step 5: Solve for x
    x = 18,585,966,875.42/157,566.80
  6. Step 6: Final answer
    x = 117,956.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.