Home / 125,840.58-173,664.08-72,135.76

Finding the Fourth Proportional to 125,840.58, 173,664.08 and 72,135.76

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Solution

The fourth proportional to 125,840.58, 173,664.08 and 72,135.76 is: 99,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,840.58 : 173,664.08 = 72,135.76 : x
  2. Step 2: Convert to fraction form
    125,840.58/173,664.08 = 72,135.76/x
  3. Step 3: Cross multiply
    125,840.58x = 173,664.08 × 72,135.76
  4. Step 4: Simplify right side
    125,840.58x = 12,527,390,395.50
  5. Step 5: Solve for x
    x = 12,527,390,395.50/125,840.58
  6. Step 6: Final answer
    x = 99,549.69

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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.