Home / 152,142.03-209,939.85-84,148.20

Finding the Fourth Proportional to 152,142.03, 209,939.85 and 84,148.20

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Solution

The fourth proportional to 152,142.03, 209,939.85 and 84,148.20 is: 116,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,142.03 : 209,939.85 = 84,148.20 : x
  2. Step 2: Convert to fraction form
    152,142.03/209,939.85 = 84,148.20/x
  3. Step 3: Cross multiply
    152,142.03x = 209,939.85 × 84,148.20
  4. Step 4: Simplify right side
    152,142.03x = 17,666,060,485.77
  5. Step 5: Solve for x
    x = 17,666,060,485.77/152,142.03
  6. Step 6: Final answer
    x = 116,115.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.