Home / 131,510.16-181,495.08-80,522.64

Finding the Fourth Proportional to 131,510.16, 181,495.08 and 80,522.64

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Solution

The fourth proportional to 131,510.16, 181,495.08 and 80,522.64 is: 111,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,510.16 : 181,495.08 = 80,522.64 : x
  2. Step 2: Convert to fraction form
    131,510.16/181,495.08 = 80,522.64/x
  3. Step 3: Cross multiply
    131,510.16x = 181,495.08 × 80,522.64
  4. Step 4: Simplify right side
    131,510.16x = 14,614,462,988.61
  5. Step 5: Solve for x
    x = 14,614,462,988.61/131,510.16
  6. Step 6: Final answer
    x = 111,128.01

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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.