Home / 125,017.80-172,528.95-68,429.22

Finding the Fourth Proportional to 125,017.80, 172,528.95 and 68,429.22

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Solution

The fourth proportional to 125,017.80, 172,528.95 and 68,429.22 is: 94,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,017.80 : 172,528.95 = 68,429.22 : x
  2. Step 2: Convert to fraction form
    125,017.80/172,528.95 = 68,429.22/x
  3. Step 3: Cross multiply
    125,017.80x = 172,528.95 × 68,429.22
  4. Step 4: Simplify right side
    125,017.80x = 11,806,021,475.92
  5. Step 5: Solve for x
    x = 11,806,021,475.92/125,017.80
  6. Step 6: Final answer
    x = 94,434.72

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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.