Home / 156,639.40-234,959.10-51,461.80

Finding the Fourth Proportional to 156,639.40, 234,959.10 and 51,461.80

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Solution

The fourth proportional to 156,639.40, 234,959.10 and 51,461.80 is: 77,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639.40 : 234,959.10 = 51,461.80 : x
  2. Step 2: Convert to fraction form
    156,639.40/234,959.10 = 51,461.80/x
  3. Step 3: Cross multiply
    156,639.40x = 234,959.10 × 51,461.80
  4. Step 4: Simplify right side
    156,639.40x = 12,091,418,212.38
  5. Step 5: Solve for x
    x = 12,091,418,212.38/156,639.40
  6. Step 6: Final answer
    x = 77,192.70

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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.