Home / 145,759.90-218,440.29-74,533.57

Finding the Fourth Proportional to 145,759.90, 218,440.29 and 74,533.57

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Solution

The fourth proportional to 145,759.90, 218,440.29 and 74,533.57 is: 111,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,759.90 : 218,440.29 = 74,533.57 : x
  2. Step 2: Convert to fraction form
    145,759.90/218,440.29 = 74,533.57/x
  3. Step 3: Cross multiply
    145,759.90x = 218,440.29 × 74,533.57
  4. Step 4: Simplify right side
    145,759.90x = 16,281,134,645.54
  5. Step 5: Solve for x
    x = 16,281,134,645.54/145,759.90
  6. Step 6: Final answer
    x = 111,698.31

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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.