Home / 135,803.40-187,407.28-75,374.57

Finding the Fourth Proportional to 135,803.40, 187,407.28 and 75,374.57

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Solution

The fourth proportional to 135,803.40, 187,407.28 and 75,374.57 is: 104,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,803.40 : 187,407.28 = 75,374.57 : x
  2. Step 2: Convert to fraction form
    135,803.40/187,407.28 = 75,374.57/x
  3. Step 3: Cross multiply
    135,803.40x = 187,407.28 × 75,374.57
  4. Step 4: Simplify right side
    135,803.40x = 14,125,742,441.45
  5. Step 5: Solve for x
    x = 14,125,742,441.45/135,803.40
  6. Step 6: Final answer
    x = 104,016.12

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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.