Home / 103,352.86-142,642.56-63,090.10

Finding the Fourth Proportional to 103,352.86, 142,642.56 and 63,090.10

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Solution

The fourth proportional to 103,352.86, 142,642.56 and 63,090.10 is: 87,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,352.86 : 142,642.56 = 63,090.10 : x
  2. Step 2: Convert to fraction form
    103,352.86/142,642.56 = 63,090.10/x
  3. Step 3: Cross multiply
    103,352.86x = 142,642.56 × 63,090.10
  4. Step 4: Simplify right side
    103,352.86x = 8,999,333,374.66
  5. Step 5: Solve for x
    x = 8,999,333,374.66/103,352.86
  6. Step 6: Final answer
    x = 87,073.87

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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.