Home / 118,346.16-163,315.11-64,631.40

Finding the Fourth Proportional to 118,346.16, 163,315.11 and 64,631.40

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Solution

The fourth proportional to 118,346.16, 163,315.11 and 64,631.40 is: 89,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,346.16 : 163,315.11 = 64,631.40 : x
  2. Step 2: Convert to fraction form
    118,346.16/163,315.11 = 64,631.40/x
  3. Step 3: Cross multiply
    118,346.16x = 163,315.11 × 64,631.40
  4. Step 4: Simplify right side
    118,346.16x = 10,555,284,200.45
  5. Step 5: Solve for x
    x = 10,555,284,200.45/118,346.16
  6. Step 6: Final answer
    x = 89,189.92

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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.