Home / 105,470.18-145,552.23-57,723.47

Finding the Fourth Proportional to 105,470.18, 145,552.23 and 57,723.47

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Solution

The fourth proportional to 105,470.18, 145,552.23 and 57,723.47 is: 79,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,470.18 : 145,552.23 = 57,723.47 : x
  2. Step 2: Convert to fraction form
    105,470.18/145,552.23 = 57,723.47/x
  3. Step 3: Cross multiply
    105,470.18x = 145,552.23 × 57,723.47
  4. Step 4: Simplify right side
    105,470.18x = 8,401,779,054.08
  5. Step 5: Solve for x
    x = 8,401,779,054.08/105,470.18
  6. Step 6: Final answer
    x = 79,660.24

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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.