Home / 107,211.60-147,971.61-61,883.39

Finding the Fourth Proportional to 107,211.60, 147,971.61 and 61,883.39

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Solution

The fourth proportional to 107,211.60, 147,971.61 and 61,883.39 is: 85,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,211.60 : 147,971.61 = 61,883.39 : x
  2. Step 2: Convert to fraction form
    107,211.60/147,971.61 = 61,883.39/x
  3. Step 3: Cross multiply
    107,211.60x = 147,971.61 × 61,883.39
  4. Step 4: Simplify right side
    107,211.60x = 9,156,985,220.49
  5. Step 5: Solve for x
    x = 9,156,985,220.49/107,211.60
  6. Step 6: Final answer
    x = 85,410.40

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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.