Home / 112,438.45-168,638.23-42,318.37

Finding the Fourth Proportional to 112,438.45, 168,638.23 and 42,318.37

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Solution

The fourth proportional to 112,438.45, 168,638.23 and 42,318.37 is: 63,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,438.45 : 168,638.23 = 42,318.37 : x
  2. Step 2: Convert to fraction form
    112,438.45/168,638.23 = 42,318.37/x
  3. Step 3: Cross multiply
    112,438.45x = 168,638.23 × 42,318.37
  4. Step 4: Simplify right side
    112,438.45x = 7,136,495,013.29
  5. Step 5: Solve for x
    x = 7,136,495,013.29/112,438.45
  6. Step 6: Final answer
    x = 63,470.24

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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.