Home / 125,038.04-187,154.34-82,378.69

Finding the Fourth Proportional to 125,038.04, 187,154.34 and 82,378.69

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Solution

The fourth proportional to 125,038.04, 187,154.34 and 82,378.69 is: 123,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,038.04 : 187,154.34 = 82,378.69 : x
  2. Step 2: Convert to fraction form
    125,038.04/187,154.34 = 82,378.69/x
  3. Step 3: Cross multiply
    125,038.04x = 187,154.34 × 82,378.69
  4. Step 4: Simplify right side
    125,038.04x = 15,417,529,357.01
  5. Step 5: Solve for x
    x = 15,417,529,357.01/125,038.04
  6. Step 6: Final answer
    x = 123,302.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.