Home / 111,177.61-153,280.32-70,876.66

Finding the Fourth Proportional to 111,177.61, 153,280.32 and 70,876.66

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Solution

The fourth proportional to 111,177.61, 153,280.32 and 70,876.66 is: 97,717.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,177.61 : 153,280.32 = 70,876.66 : x
  2. Step 2: Convert to fraction form
    111,177.61/153,280.32 = 70,876.66/x
  3. Step 3: Cross multiply
    111,177.61x = 153,280.32 × 70,876.66
  4. Step 4: Simplify right side
    111,177.61x = 10,863,997,125.33
  5. Step 5: Solve for x
    x = 10,863,997,125.33/111,177.61
  6. Step 6: Final answer
    x = 97,717.49

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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.