Home / 145,649.26-218,472.04-79,510.74

Finding the Fourth Proportional to 145,649.26, 218,472.04 and 79,510.74

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Solution

The fourth proportional to 145,649.26, 218,472.04 and 79,510.74 is: 119,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,649.26 : 218,472.04 = 79,510.74 : x
  2. Step 2: Convert to fraction form
    145,649.26/218,472.04 = 79,510.74/x
  3. Step 3: Cross multiply
    145,649.26x = 218,472.04 × 79,510.74
  4. Step 4: Simplify right side
    145,649.26x = 17,370,873,569.71
  5. Step 5: Solve for x
    x = 17,370,873,569.71/145,649.26
  6. Step 6: Final answer
    x = 119,265.10

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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.