Home / 105,543.08-158,313.62-45,613.92

Finding the Fourth Proportional to 105,543.08, 158,313.62 and 45,613.92

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Solution

The fourth proportional to 105,543.08, 158,313.62 and 45,613.92 is: 68,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,543.08 : 158,313.62 = 45,613.92 : x
  2. Step 2: Convert to fraction form
    105,543.08/158,313.62 = 45,613.92/x
  3. Step 3: Cross multiply
    105,543.08x = 158,313.62 × 45,613.92
  4. Step 4: Simplify right side
    105,543.08x = 7,221,304,881.45
  5. Step 5: Solve for x
    x = 7,221,304,881.45/105,543.08
  6. Step 6: Final answer
    x = 68,420.45

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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.