Home / 103,216.80-142,452.36-60,779.28

Finding the Fourth Proportional to 103,216.80, 142,452.36 and 60,779.28

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Solution

The fourth proportional to 103,216.80, 142,452.36 and 60,779.28 is: 83,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,216.80 : 142,452.36 = 60,779.28 : x
  2. Step 2: Convert to fraction form
    103,216.80/142,452.36 = 60,779.28/x
  3. Step 3: Cross multiply
    103,216.80x = 142,452.36 × 60,779.28
  4. Step 4: Simplify right side
    103,216.80x = 8,658,151,875.10
  5. Step 5: Solve for x
    x = 8,658,151,875.10/103,216.80
  6. Step 6: Final answer
    x = 83,883.17

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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.