Home / 114,721.16-172,191.23-70,434.41

Finding the Fourth Proportional to 114,721.16, 172,191.23 and 70,434.41

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Solution

The fourth proportional to 114,721.16, 172,191.23 and 70,434.41 is: 105,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,721.16 : 172,191.23 = 70,434.41 : x
  2. Step 2: Convert to fraction form
    114,721.16/172,191.23 = 70,434.41/x
  3. Step 3: Cross multiply
    114,721.16x = 172,191.23 × 70,434.41
  4. Step 4: Simplify right side
    114,721.16x = 12,128,186,479.10
  5. Step 5: Solve for x
    x = 12,128,186,479.10/114,721.16
  6. Step 6: Final answer
    x = 105,718.83

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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.