Home / 99,726.45-137,611.88-56,118.23

Finding the Fourth Proportional to 99,726.45, 137,611.88 and 56,118.23

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Solution

The fourth proportional to 99,726.45, 137,611.88 and 56,118.23 is: 77,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,726.45 : 137,611.88 = 56,118.23 : x
  2. Step 2: Convert to fraction form
    99,726.45/137,611.88 = 56,118.23/x
  3. Step 3: Cross multiply
    99,726.45x = 137,611.88 × 56,118.23
  4. Step 4: Simplify right side
    99,726.45x = 7,722,535,132.57
  5. Step 5: Solve for x
    x = 7,722,535,132.57/99,726.45
  6. Step 6: Final answer
    x = 77,437.18

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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.