Home / 125,503.17-173,130.21-80,133.45

Finding the Fourth Proportional to 125,503.17, 173,130.21 and 80,133.45

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Solution

The fourth proportional to 125,503.17, 173,130.21 and 80,133.45 is: 110,543.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,503.17 : 173,130.21 = 80,133.45 : x
  2. Step 2: Convert to fraction form
    125,503.17/173,130.21 = 80,133.45/x
  3. Step 3: Cross multiply
    125,503.17x = 173,130.21 × 80,133.45
  4. Step 4: Simplify right side
    125,503.17x = 13,873,521,026.52
  5. Step 5: Solve for x
    x = 13,873,521,026.52/125,503.17
  6. Step 6: Final answer
    x = 110,543.19

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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.