Home / 230,116.50-317,560.43-128,150.89

Finding the Fourth Proportional to 230,116.50, 317,560.43 and 128,150.89

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Solution

The fourth proportional to 230,116.50, 317,560.43 and 128,150.89 is: 176,848.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,116.50 : 317,560.43 = 128,150.89 : x
  2. Step 2: Convert to fraction form
    230,116.50/317,560.43 = 128,150.89/x
  3. Step 3: Cross multiply
    230,116.50x = 317,560.43 × 128,150.89
  4. Step 4: Simplify right side
    230,116.50x = 40,695,651,259.76
  5. Step 5: Solve for x
    x = 40,695,651,259.76/230,116.50
  6. Step 6: Final answer
    x = 176,848.04

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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.