Home / 125,439.16-173,103.57-70,990.32

Finding the Fourth Proportional to 125,439.16, 173,103.57 and 70,990.32

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Solution

The fourth proportional to 125,439.16, 173,103.57 and 70,990.32 is: 97,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,439.16 : 173,103.57 = 70,990.32 : x
  2. Step 2: Convert to fraction form
    125,439.16/173,103.57 = 70,990.32/x
  3. Step 3: Cross multiply
    125,439.16x = 173,103.57 × 70,990.32
  4. Step 4: Simplify right side
    125,439.16x = 12,288,677,827.44
  5. Step 5: Solve for x
    x = 12,288,677,827.44/125,439.16
  6. Step 6: Final answer
    x = 97,965.24

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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.