Home / 118,392.18-163,384.85-64,680.68

Finding the Fourth Proportional to 118,392.18, 163,384.85 and 64,680.68

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Solution

The fourth proportional to 118,392.18, 163,384.85 and 64,680.68 is: 89,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,392.18 : 163,384.85 = 64,680.68 : x
  2. Step 2: Convert to fraction form
    118,392.18/163,384.85 = 64,680.68/x
  3. Step 3: Cross multiply
    118,392.18x = 163,384.85 × 64,680.68
  4. Step 4: Simplify right side
    118,392.18x = 10,567,842,486.99
  5. Step 5: Solve for x
    x = 10,567,842,486.99/118,392.18
  6. Step 6: Final answer
    x = 89,261.32

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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.