Home / 115,899.02-159,913.23-65,598.02

Finding the Fourth Proportional to 115,899.02, 159,913.23 and 65,598.02

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Solution

The fourth proportional to 115,899.02, 159,913.23 and 65,598.02 is: 90,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,899.02 : 159,913.23 = 65,598.02 : x
  2. Step 2: Convert to fraction form
    115,899.02/159,913.23 = 65,598.02/x
  3. Step 3: Cross multiply
    115,899.02x = 159,913.23 × 65,598.02
  4. Step 4: Simplify right side
    115,899.02x = 10,489,991,259.80
  5. Step 5: Solve for x
    x = 10,489,991,259.80/115,899.02
  6. Step 6: Final answer
    x = 90,509.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.