Home / 155,500.60-233,078.10-85,430.20

Finding the Fourth Proportional to 155,500.60, 233,078.10 and 85,430.20

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Solution

The fourth proportional to 155,500.60, 233,078.10 and 85,430.20 is: 128,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,500.60 : 233,078.10 = 85,430.20 : x
  2. Step 2: Convert to fraction form
    155,500.60/233,078.10 = 85,430.20/x
  3. Step 3: Cross multiply
    155,500.60x = 233,078.10 × 85,430.20
  4. Step 4: Simplify right side
    155,500.60x = 19,911,908,698.62
  5. Step 5: Solve for x
    x = 19,911,908,698.62/155,500.60
  6. Step 6: Final answer
    x = 128,050.37

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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.