Home / 99,422.02-137,208.29-56,983.29

Finding the Fourth Proportional to 99,422.02, 137,208.29 and 56,983.29

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Solution

The fourth proportional to 99,422.02, 137,208.29 and 56,983.29 is: 78,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,422.02 : 137,208.29 = 56,983.29 : x
  2. Step 2: Convert to fraction form
    99,422.02/137,208.29 = 56,983.29/x
  3. Step 3: Cross multiply
    99,422.02x = 137,208.29 × 56,983.29
  4. Step 4: Simplify right side
    99,422.02x = 7,818,579,779.47
  5. Step 5: Solve for x
    x = 7,818,579,779.47/99,422.02
  6. Step 6: Final answer
    x = 78,640.32

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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.