Home / 118,300.47-177,478.95-39,415.38

Finding the Fourth Proportional to 118,300.47, 177,478.95 and 39,415.38

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Solution

The fourth proportional to 118,300.47, 177,478.95 and 39,415.38 is: 59,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,300.47 : 177,478.95 = 39,415.38 : x
  2. Step 2: Convert to fraction form
    118,300.47/177,478.95 = 39,415.38/x
  3. Step 3: Cross multiply
    118,300.47x = 177,478.95 × 39,415.38
  4. Step 4: Simplify right side
    118,300.47x = 6,995,400,256.25
  5. Step 5: Solve for x
    x = 6,995,400,256.25/118,300.47
  6. Step 6: Final answer
    x = 59,132.48

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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.