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Finding the Fourth Proportional to 153,790.80, 230,437.80 and 87,032.40

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Solution

The fourth proportional to 153,790.80, 230,437.80 and 87,032.40 is: 130,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,790.80 : 230,437.80 = 87,032.40 : x
  2. Step 2: Convert to fraction form
    153,790.80/230,437.80 = 87,032.40/x
  3. Step 3: Cross multiply
    153,790.80x = 230,437.80 × 87,032.40
  4. Step 4: Simplify right side
    153,790.80x = 20,055,554,784.72
  5. Step 5: Solve for x
    x = 20,055,554,784.72/153,790.80
  6. Step 6: Final answer
    x = 130,408.03

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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.