Home / 103,211.80-142,445.46-60,774.28

Finding the Fourth Proportional to 103,211.80, 142,445.46 and 60,774.28

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Solution

The fourth proportional to 103,211.80, 142,445.46 and 60,774.28 is: 83,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,211.80 : 142,445.46 = 60,774.28 : x
  2. Step 2: Convert to fraction form
    103,211.80/142,445.46 = 60,774.28/x
  3. Step 3: Cross multiply
    103,211.80x = 142,445.46 × 60,774.28
  4. Step 4: Simplify right side
    103,211.80x = 8,657,020,270.77
  5. Step 5: Solve for x
    x = 8,657,020,270.77/103,211.80
  6. Step 6: Final answer
    x = 83,876.26

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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.