Home / 147,432.48-203,436.30-87,005.64

Finding the Fourth Proportional to 147,432.48, 203,436.30 and 87,005.64

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Solution

The fourth proportional to 147,432.48, 203,436.30 and 87,005.64 is: 120,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,432.48 : 203,436.30 = 87,005.64 : x
  2. Step 2: Convert to fraction form
    147,432.48/203,436.30 = 87,005.64/x
  3. Step 3: Cross multiply
    147,432.48x = 203,436.30 × 87,005.64
  4. Step 4: Simplify right side
    147,432.48x = 17,700,105,480.73
  5. Step 5: Solve for x
    x = 17,700,105,480.73/147,432.48
  6. Step 6: Final answer
    x = 120,055.67

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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.