Home / 90,129.85-124,246.58-70,948.17

Finding the Fourth Proportional to 90,129.85, 124,246.58 and 70,948.17

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Solution

The fourth proportional to 90,129.85, 124,246.58 and 70,948.17 is: 97,804.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,129.85 : 124,246.58 = 70,948.17 : x
  2. Step 2: Convert to fraction form
    90,129.85/124,246.58 = 70,948.17/x
  3. Step 3: Cross multiply
    90,129.85x = 124,246.58 × 70,948.17
  4. Step 4: Simplify right side
    90,129.85x = 8,815,067,125.02
  5. Step 5: Solve for x
    x = 8,815,067,125.02/90,129.85
  6. Step 6: Final answer
    x = 97,804.08

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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.