Home / 112,495.46-155,278.37-64,780.66

Finding the Fourth Proportional to 112,495.46, 155,278.37 and 64,780.66

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Solution

The fourth proportional to 112,495.46, 155,278.37 and 64,780.66 is: 89,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,495.46 : 155,278.37 = 64,780.66 : x
  2. Step 2: Convert to fraction form
    112,495.46/155,278.37 = 64,780.66/x
  3. Step 3: Cross multiply
    112,495.46x = 155,278.37 × 64,780.66
  4. Step 4: Simplify right side
    112,495.46x = 10,059,034,192.03
  5. Step 5: Solve for x
    x = 10,059,034,192.03/112,495.46
  6. Step 6: Final answer
    x = 89,417.25

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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.