Home / 128,047.10-176,714.79-70,697.48

Finding the Fourth Proportional to 128,047.10, 176,714.79 and 70,697.48

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Solution

The fourth proportional to 128,047.10, 176,714.79 and 70,697.48 is: 97,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,047.10 : 176,714.79 = 70,697.48 : x
  2. Step 2: Convert to fraction form
    128,047.10/176,714.79 = 70,697.48/x
  3. Step 3: Cross multiply
    128,047.10x = 176,714.79 × 70,697.48
  4. Step 4: Simplify right side
    128,047.10x = 12,493,290,331.73
  5. Step 5: Solve for x
    x = 12,493,290,331.73/128,047.10
  6. Step 6: Final answer
    x = 97,567.93

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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.