Home / 105,458.63-158,188.50-43,129.13

Finding the Fourth Proportional to 105,458.63, 158,188.50 and 43,129.13

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Solution

The fourth proportional to 105,458.63, 158,188.50 and 43,129.13 is: 64,693.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,458.63 : 158,188.50 = 43,129.13 : x
  2. Step 2: Convert to fraction form
    105,458.63/158,188.50 = 43,129.13/x
  3. Step 3: Cross multiply
    105,458.63x = 158,188.50 × 43,129.13
  4. Step 4: Simplify right side
    105,458.63x = 6,822,531,590.06
  5. Step 5: Solve for x
    x = 6,822,531,590.06/105,458.63
  6. Step 6: Final answer
    x = 64,693.92

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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.