Home / 103,216.92-142,307.48-66,854.10

Finding the Fourth Proportional to 103,216.92, 142,307.48 and 66,854.10

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Solution

The fourth proportional to 103,216.92, 142,307.48 and 66,854.10 is: 92,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,216.92 : 142,307.48 = 66,854.10 : x
  2. Step 2: Convert to fraction form
    103,216.92/142,307.48 = 66,854.10/x
  3. Step 3: Cross multiply
    103,216.92x = 142,307.48 × 66,854.10
  4. Step 4: Simplify right side
    103,216.92x = 9,513,838,498.67
  5. Step 5: Solve for x
    x = 9,513,838,498.67/103,216.92
  6. Step 6: Final answer
    x = 92,173.25

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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.