Home / 78,152.02-117,227.64-28,232.08

Finding the Fourth Proportional to 78,152.02, 117,227.64 and 28,232.08

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Solution

The fourth proportional to 78,152.02, 117,227.64 and 28,232.08 is: 42,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,152.02 : 117,227.64 = 28,232.08 : x
  2. Step 2: Convert to fraction form
    78,152.02/117,227.64 = 28,232.08/x
  3. Step 3: Cross multiply
    78,152.02x = 117,227.64 × 28,232.08
  4. Step 4: Simplify right side
    78,152.02x = 3,309,580,110.69
  5. Step 5: Solve for x
    x = 3,309,580,110.69/78,152.02
  6. Step 6: Final answer
    x = 42,347.98

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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.