Home / 157,427.02-217,247.94-85,807.06

Finding the Fourth Proportional to 157,427.02, 217,247.94 and 85,807.06

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Solution

The fourth proportional to 157,427.02, 217,247.94 and 85,807.06 is: 118,413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.02 : 217,247.94 = 85,807.06 : x
  2. Step 2: Convert to fraction form
    157,427.02/217,247.94 = 85,807.06/x
  3. Step 3: Cross multiply
    157,427.02x = 217,247.94 × 85,807.06
  4. Step 4: Simplify right side
    157,427.02x = 18,641,407,022.46
  5. Step 5: Solve for x
    x = 18,641,407,022.46/157,427.02
  6. Step 6: Final answer
    x = 118,413.01

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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.