Home / 125,520.48-173,242.80-77,795.04

Finding the Fourth Proportional to 125,520.48, 173,242.80 and 77,795.04

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Solution

The fourth proportional to 125,520.48, 173,242.80 and 77,795.04 is: 107,372.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,520.48 : 173,242.80 = 77,795.04 : x
  2. Step 2: Convert to fraction form
    125,520.48/173,242.80 = 77,795.04/x
  3. Step 3: Cross multiply
    125,520.48x = 173,242.80 × 77,795.04
  4. Step 4: Simplify right side
    125,520.48x = 13,477,430,555.71
  5. Step 5: Solve for x
    x = 13,477,430,555.71/125,520.48
  6. Step 6: Final answer
    x = 107,372.36

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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.