Home / 134,731.20-201,751.20-128,510.40

Finding the Fourth Proportional to 134,731.20, 201,751.20 and 128,510.40

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Solution

The fourth proportional to 134,731.20, 201,751.20 and 128,510.40 is: 192,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,731.20 : 201,751.20 = 128,510.40 : x
  2. Step 2: Convert to fraction form
    134,731.20/201,751.20 = 128,510.40/x
  3. Step 3: Cross multiply
    134,731.20x = 201,751.20 × 128,510.40
  4. Step 4: Simplify right side
    134,731.20x = 25,927,127,412.48
  5. Step 5: Solve for x
    x = 25,927,127,412.48/134,731.20
  6. Step 6: Final answer
    x = 192,435.96

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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.