Home / 112,036.17-154,561.32-66,688.71

Finding the Fourth Proportional to 112,036.17, 154,561.32 and 66,688.71

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Solution

The fourth proportional to 112,036.17, 154,561.32 and 66,688.71 is: 92,001.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,036.17 : 154,561.32 = 66,688.71 : x
  2. Step 2: Convert to fraction form
    112,036.17/154,561.32 = 66,688.71/x
  3. Step 3: Cross multiply
    112,036.17x = 154,561.32 × 66,688.71
  4. Step 4: Simplify right side
    112,036.17x = 10,307,495,046.70
  5. Step 5: Solve for x
    x = 10,307,495,046.70/112,036.17
  6. Step 6: Final answer
    x = 92,001.49

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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.