Home / 118,423.89-163,417.77-67,438.76

Finding the Fourth Proportional to 118,423.89, 163,417.77 and 67,438.76

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Solution

The fourth proportional to 118,423.89, 163,417.77 and 67,438.76 is: 93,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,423.89 : 163,417.77 = 67,438.76 : x
  2. Step 2: Convert to fraction form
    118,423.89/163,417.77 = 67,438.76/x
  3. Step 3: Cross multiply
    118,423.89x = 163,417.77 × 67,438.76
  4. Step 4: Simplify right side
    118,423.89x = 11,020,692,277.81
  5. Step 5: Solve for x
    x = 11,020,692,277.81/118,423.89
  6. Step 6: Final answer
    x = 93,061.40

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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.