Home / 102,158.20-153,237.57-31,081.51

Finding the Fourth Proportional to 102,158.20, 153,237.57 and 31,081.51

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Solution

The fourth proportional to 102,158.20, 153,237.57 and 31,081.51 is: 46,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,158.20 : 153,237.57 = 31,081.51 : x
  2. Step 2: Convert to fraction form
    102,158.20/153,237.57 = 31,081.51/x
  3. Step 3: Cross multiply
    102,158.20x = 153,237.57 × 31,081.51
  4. Step 4: Simplify right side
    102,158.20x = 4,762,855,064.33
  5. Step 5: Solve for x
    x = 4,762,855,064.33/102,158.20
  6. Step 6: Final answer
    x = 46,622.35

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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.