Home / 103,702.48-142,808.06-90,084.29

Finding the Fourth Proportional to 103,702.48, 142,808.06 and 90,084.29

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Solution

The fourth proportional to 103,702.48, 142,808.06 and 90,084.29 is: 124,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,702.48 : 142,808.06 = 90,084.29 : x
  2. Step 2: Convert to fraction form
    103,702.48/142,808.06 = 90,084.29/x
  3. Step 3: Cross multiply
    103,702.48x = 142,808.06 × 90,084.29
  4. Step 4: Simplify right side
    103,702.48x = 12,864,762,202.55
  5. Step 5: Solve for x
    x = 12,864,762,202.55/103,702.48
  6. Step 6: Final answer
    x = 124,054.53

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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.