Home / 156,907.20-235,360.80-145,387.20

Finding the Fourth Proportional to 156,907.20, 235,360.80 and 145,387.20

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Solution

The fourth proportional to 156,907.20, 235,360.80 and 145,387.20 is: 218,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,907.20 : 235,360.80 = 145,387.20 : x
  2. Step 2: Convert to fraction form
    156,907.20/235,360.80 = 145,387.20/x
  3. Step 3: Cross multiply
    156,907.20x = 235,360.80 × 145,387.20
  4. Step 4: Simplify right side
    156,907.20x = 34,218,447,701.76
  5. Step 5: Solve for x
    x = 34,218,447,701.76/156,907.20
  6. Step 6: Final answer
    x = 218,080.80

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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.