Home / 118,341.90-163,219.23-75,904.30

Finding the Fourth Proportional to 118,341.90, 163,219.23 and 75,904.30

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Solution

The fourth proportional to 118,341.90, 163,219.23 and 75,904.30 is: 104,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,341.90 : 163,219.23 = 75,904.30 : x
  2. Step 2: Convert to fraction form
    118,341.90/163,219.23 = 75,904.30/x
  3. Step 3: Cross multiply
    118,341.90x = 163,219.23 × 75,904.30
  4. Step 4: Simplify right side
    118,341.90x = 12,389,041,399.69
  5. Step 5: Solve for x
    x = 12,389,041,399.69/118,341.90
  6. Step 6: Final answer
    x = 104,688.55

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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.