Home / 147,235.74-220,417.29-90,894.69

Finding the Fourth Proportional to 147,235.74, 220,417.29 and 90,894.69

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Solution

The fourth proportional to 147,235.74, 220,417.29 and 90,894.69 is: 136,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,235.74 : 220,417.29 = 90,894.69 : x
  2. Step 2: Convert to fraction form
    147,235.74/220,417.29 = 90,894.69/x
  3. Step 3: Cross multiply
    147,235.74x = 220,417.29 × 90,894.69
  4. Step 4: Simplify right side
    147,235.74x = 20,034,761,245.19
  5. Step 5: Solve for x
    x = 20,034,761,245.19/147,235.74
  6. Step 6: Final answer
    x = 136,072.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.