Home / 118,148.87-163,038.94-67,154.51

Finding the Fourth Proportional to 118,148.87, 163,038.94 and 67,154.51

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Solution

The fourth proportional to 118,148.87, 163,038.94 and 67,154.51 is: 92,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,148.87 : 163,038.94 = 67,154.51 : x
  2. Step 2: Convert to fraction form
    118,148.87/163,038.94 = 67,154.51/x
  3. Step 3: Cross multiply
    118,148.87x = 163,038.94 × 67,154.51
  4. Step 4: Simplify right side
    118,148.87x = 10,948,799,311.42
  5. Step 5: Solve for x
    x = 10,948,799,311.42/118,148.87
  6. Step 6: Final answer
    x = 92,669.53

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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.