Home / 261,971.90-392,957.85-156,736.70

Finding the Fourth Proportional to 261,971.90, 392,957.85 and 156,736.70

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Solution

The fourth proportional to 261,971.90, 392,957.85 and 156,736.70 is: 235,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,971.90 : 392,957.85 = 156,736.70 : x
  2. Step 2: Convert to fraction form
    261,971.90/392,957.85 = 156,736.70/x
  3. Step 3: Cross multiply
    261,971.90x = 392,957.85 × 156,736.70
  4. Step 4: Simplify right side
    261,971.90x = 61,590,916,648.10
  5. Step 5: Solve for x
    x = 61,590,916,648.10/261,971.90
  6. Step 6: Final answer
    x = 235,105.05

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1.5x scale

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.