Home / 111,117.61-153,341.13-60,129.19

Finding the Fourth Proportional to 111,117.61, 153,341.13 and 60,129.19

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Solution

The fourth proportional to 111,117.61, 153,341.13 and 60,129.19 is: 82,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,117.61 : 153,341.13 = 60,129.19 : x
  2. Step 2: Convert to fraction form
    111,117.61/153,341.13 = 60,129.19/x
  3. Step 3: Cross multiply
    111,117.61x = 153,341.13 × 60,129.19
  4. Step 4: Simplify right side
    111,117.61x = 9,220,277,940.58
  5. Step 5: Solve for x
    x = 9,220,277,940.58/111,117.61
  6. Step 6: Final answer
    x = 82,977.65

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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.