Home / 109,152.51-150,630.21-61,405.85

Finding the Fourth Proportional to 109,152.51, 150,630.21 and 61,405.85

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Solution

The fourth proportional to 109,152.51, 150,630.21 and 61,405.85 is: 84,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,152.51 : 150,630.21 = 61,405.85 : x
  2. Step 2: Convert to fraction form
    109,152.51/150,630.21 = 61,405.85/x
  3. Step 3: Cross multiply
    109,152.51x = 150,630.21 × 61,405.85
  4. Step 4: Simplify right side
    109,152.51x = 9,249,575,327.58
  5. Step 5: Solve for x
    x = 9,249,575,327.58/109,152.51
  6. Step 6: Final answer
    x = 84,739.92

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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.