Home / 118,121.55-177,218.10-42,210.15

Finding the Fourth Proportional to 118,121.55, 177,218.10 and 42,210.15

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Solution

The fourth proportional to 118,121.55, 177,218.10 and 42,210.15 is: 63,328.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.55 : 177,218.10 = 42,210.15 : x
  2. Step 2: Convert to fraction form
    118,121.55/177,218.10 = 42,210.15/x
  3. Step 3: Cross multiply
    118,121.55x = 177,218.10 × 42,210.15
  4. Step 4: Simplify right side
    118,121.55x = 7,480,402,583.72
  5. Step 5: Solve for x
    x = 7,480,402,583.72/118,121.55
  6. Step 6: Final answer
    x = 63,328.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.