Home / 125,327.48-172,949.55-70,878.70

Finding the Fourth Proportional to 125,327.48, 172,949.55 and 70,878.70

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Solution

The fourth proportional to 125,327.48, 172,949.55 and 70,878.70 is: 97,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,327.48 : 172,949.55 = 70,878.70 : x
  2. Step 2: Convert to fraction form
    125,327.48/172,949.55 = 70,878.70/x
  3. Step 3: Cross multiply
    125,327.48x = 172,949.55 × 70,878.70
  4. Step 4: Simplify right side
    125,327.48x = 12,258,438,845.17
  5. Step 5: Solve for x
    x = 12,258,438,845.17/125,327.48
  6. Step 6: Final answer
    x = 97,811.26

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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.