Home / 260,001.10-390,001.65-141,903.10

Finding the Fourth Proportional to 260,001.10, 390,001.65 and 141,903.10

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Solution

The fourth proportional to 260,001.10, 390,001.65 and 141,903.10 is: 212,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,001.10 : 390,001.65 = 141,903.10 : x
  2. Step 2: Convert to fraction form
    260,001.10/390,001.65 = 141,903.10/x
  3. Step 3: Cross multiply
    260,001.10x = 390,001.65 × 141,903.10
  4. Step 4: Simplify right side
    260,001.10x = 55,342,443,140.12
  5. Step 5: Solve for x
    x = 55,342,443,140.12/260,001.10
  6. Step 6: Final answer
    x = 212,854.65

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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.