Home / 112,325.40-168,438.06-42,155.10

Finding the Fourth Proportional to 112,325.40, 168,438.06 and 42,155.10

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Solution

The fourth proportional to 112,325.40, 168,438.06 and 42,155.10 is: 63,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,325.40 : 168,438.06 = 42,155.10 : x
  2. Step 2: Convert to fraction form
    112,325.40/168,438.06 = 42,155.10/x
  3. Step 3: Cross multiply
    112,325.40x = 168,438.06 × 42,155.10
  4. Step 4: Simplify right side
    112,325.40x = 7,100,523,263.11
  5. Step 5: Solve for x
    x = 7,100,523,263.11/112,325.40
  6. Step 6: Final answer
    x = 63,213.87

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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.