Home / 131,316.90-197,036.85-64,720.72

Finding the Fourth Proportional to 131,316.90, 197,036.85 and 64,720.72

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Solution

The fourth proportional to 131,316.90, 197,036.85 and 64,720.72 is: 97,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,316.90 : 197,036.85 = 64,720.72 : x
  2. Step 2: Convert to fraction form
    131,316.90/197,036.85 = 64,720.72/x
  3. Step 3: Cross multiply
    131,316.90x = 197,036.85 × 64,720.72
  4. Step 4: Simplify right side
    131,316.90x = 12,752,367,287.53
  5. Step 5: Solve for x
    x = 12,752,367,287.53/131,316.90
  6. Step 6: Final answer
    x = 97,111.40

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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.