Home / 117,014.40-175,521.60-87,638.40

Finding the Fourth Proportional to 117,014.40, 175,521.60 and 87,638.40

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Solution

The fourth proportional to 117,014.40, 175,521.60 and 87,638.40 is: 131,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,014.40 : 175,521.60 = 87,638.40 : x
  2. Step 2: Convert to fraction form
    117,014.40/175,521.60 = 87,638.40/x
  3. Step 3: Cross multiply
    117,014.40x = 175,521.60 × 87,638.40
  4. Step 4: Simplify right side
    117,014.40x = 15,382,432,189.44
  5. Step 5: Solve for x
    x = 15,382,432,189.44/117,014.40
  6. Step 6: Final answer
    x = 131,457.60

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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.