Home / 90,187.64-124,508.64-67,518.48

Finding the Fourth Proportional to 90,187.64, 124,508.64 and 67,518.48

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Solution

The fourth proportional to 90,187.64, 124,508.64 and 67,518.48 is: 93,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,187.64 : 124,508.64 = 67,518.48 : x
  2. Step 2: Convert to fraction form
    90,187.64/124,508.64 = 67,518.48/x
  3. Step 3: Cross multiply
    90,187.64x = 124,508.64 × 67,518.48
  4. Step 4: Simplify right side
    90,187.64x = 8,406,634,119.67
  5. Step 5: Solve for x
    x = 8,406,634,119.67/90,187.64
  6. Step 6: Final answer
    x = 93,212.71

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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.