Home / 152,126.06-209,941.36-84,142.76

Finding the Fourth Proportional to 152,126.06, 209,941.36 and 84,142.76

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Solution

The fourth proportional to 152,126.06, 209,941.36 and 84,142.76 is: 116,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,126.06 : 209,941.36 = 84,142.76 : x
  2. Step 2: Convert to fraction form
    152,126.06/209,941.36 = 84,142.76/x
  3. Step 3: Cross multiply
    152,126.06x = 209,941.36 × 84,142.76
  4. Step 4: Simplify right side
    152,126.06x = 17,665,045,468.55
  5. Step 5: Solve for x
    x = 17,665,045,468.55/152,126.06
  6. Step 6: Final answer
    x = 116,121.10

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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.