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Finding the Fourth Proportional to 130,019.60, 194,971.80 and 59,920.40

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Solution

The fourth proportional to 130,019.60, 194,971.80 and 59,920.40 is: 89,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,019.60 : 194,971.80 = 59,920.40 : x
  2. Step 2: Convert to fraction form
    130,019.60/194,971.80 = 59,920.40/x
  3. Step 3: Cross multiply
    130,019.60x = 194,971.80 × 59,920.40
  4. Step 4: Simplify right side
    130,019.60x = 11,682,788,244.72
  5. Step 5: Solve for x
    x = 11,682,788,244.72/130,019.60
  6. Step 6: Final answer
    x = 89,854.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.