Home / 145,648.26-218,470.55-79,509.74

Finding the Fourth Proportional to 145,648.26, 218,470.55 and 79,509.74

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Solution

The fourth proportional to 145,648.26, 218,470.55 and 79,509.74 is: 119,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,648.26 : 218,470.55 = 79,509.74 : x
  2. Step 2: Convert to fraction form
    145,648.26/218,470.55 = 79,509.74/x
  3. Step 3: Cross multiply
    145,648.26x = 218,470.55 × 79,509.74
  4. Step 4: Simplify right side
    145,648.26x = 17,370,535,138.26
  5. Step 5: Solve for x
    x = 17,370,535,138.26/145,648.26
  6. Step 6: Final answer
    x = 119,263.60

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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.