Home / 85,342.02-127,734.18-77,157.24

Finding the Fourth Proportional to 85,342.02, 127,734.18 and 77,157.24

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Solution

The fourth proportional to 85,342.02, 127,734.18 and 77,157.24 is: 115,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,342.02 : 127,734.18 = 77,157.24 : x
  2. Step 2: Convert to fraction form
    85,342.02/127,734.18 = 77,157.24/x
  3. Step 3: Cross multiply
    85,342.02x = 127,734.18 × 77,157.24
  4. Step 4: Simplify right side
    85,342.02x = 9,855,616,782.46
  5. Step 5: Solve for x
    x = 9,855,616,782.46/85,342.02
  6. Step 6: Final answer
    x = 115,483.75

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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.