Home / 111,070.59-153,302.01-76,663.62

Finding the Fourth Proportional to 111,070.59, 153,302.01 and 76,663.62

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Solution

The fourth proportional to 111,070.59, 153,302.01 and 76,663.62 is: 105,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,070.59 : 153,302.01 = 76,663.62 : x
  2. Step 2: Convert to fraction form
    111,070.59/153,302.01 = 76,663.62/x
  3. Step 3: Cross multiply
    111,070.59x = 153,302.01 × 76,663.62
  4. Step 4: Simplify right side
    111,070.59x = 11,752,687,039.88
  5. Step 5: Solve for x
    x = 11,752,687,039.88/111,070.59
  6. Step 6: Final answer
    x = 105,812.77

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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.