Home / 235,447.81-324,909.02-128,017.93

Finding the Fourth Proportional to 235,447.81, 324,909.02 and 128,017.93

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Solution

The fourth proportional to 235,447.81, 324,909.02 and 128,017.93 is: 176,659.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,447.81 : 324,909.02 = 128,017.93 : x
  2. Step 2: Convert to fraction form
    235,447.81/324,909.02 = 128,017.93/x
  3. Step 3: Cross multiply
    235,447.81x = 324,909.02 × 128,017.93
  4. Step 4: Simplify right side
    235,447.81x = 41,594,179,686.50
  5. Step 5: Solve for x
    x = 41,594,179,686.50/235,447.81
  6. Step 6: Final answer
    x = 176,659.87

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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.