Home / 158,047.20-237,070.80-83,138.40

Finding the Fourth Proportional to 158,047.20, 237,070.80 and 83,138.40

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Solution

The fourth proportional to 158,047.20, 237,070.80 and 83,138.40 is: 124,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,047.20 : 237,070.80 = 83,138.40 : x
  2. Step 2: Convert to fraction form
    158,047.20/237,070.80 = 83,138.40/x
  3. Step 3: Cross multiply
    158,047.20x = 237,070.80 × 83,138.40
  4. Step 4: Simplify right side
    158,047.20x = 19,709,686,998.72
  5. Step 5: Solve for x
    x = 19,709,686,998.72/158,047.20
  6. Step 6: Final answer
    x = 124,707.60

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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.