Home / 155,004.40-232,506.60-128,760.40

Finding the Fourth Proportional to 155,004.40, 232,506.60 and 128,760.40

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Solution

The fourth proportional to 155,004.40, 232,506.60 and 128,760.40 is: 193,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,004.40 : 232,506.60 = 128,760.40 : x
  2. Step 2: Convert to fraction form
    155,004.40/232,506.60 = 128,760.40/x
  3. Step 3: Cross multiply
    155,004.40x = 232,506.60 × 128,760.40
  4. Step 4: Simplify right side
    155,004.40x = 29,937,642,818.64
  5. Step 5: Solve for x
    x = 29,937,642,818.64/155,004.40
  6. Step 6: Final answer
    x = 193,140.60

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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.