Home / 118,678.05-177,970.95-42,756.33

Finding the Fourth Proportional to 118,678.05, 177,970.95 and 42,756.33

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Solution

The fourth proportional to 118,678.05, 177,970.95 and 42,756.33 is: 64,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,678.05 : 177,970.95 = 42,756.33 : x
  2. Step 2: Convert to fraction form
    118,678.05/177,970.95 = 42,756.33/x
  3. Step 3: Cross multiply
    118,678.05x = 177,970.95 × 42,756.33
  4. Step 4: Simplify right side
    118,678.05x = 7,609,384,668.61
  5. Step 5: Solve for x
    x = 7,609,384,668.61/118,678.05
  6. Step 6: Final answer
    x = 64,117.88

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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.