Home / 99,400.28-137,124.06-59,085.50

Finding the Fourth Proportional to 99,400.28, 137,124.06 and 59,085.50

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Solution

The fourth proportional to 99,400.28, 137,124.06 and 59,085.50 is: 81,509.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,400.28 : 137,124.06 = 59,085.50 : x
  2. Step 2: Convert to fraction form
    99,400.28/137,124.06 = 59,085.50/x
  3. Step 3: Cross multiply
    99,400.28x = 137,124.06 × 59,085.50
  4. Step 4: Simplify right side
    99,400.28x = 8,102,043,647.13
  5. Step 5: Solve for x
    x = 8,102,043,647.13/99,400.28
  6. Step 6: Final answer
    x = 81,509.26

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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.