Home / 121,510.32-181,386.44-104,976.60

Finding the Fourth Proportional to 121,510.32, 181,386.44 and 104,976.60

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Solution

The fourth proportional to 121,510.32, 181,386.44 and 104,976.60 is: 156,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,510.32 : 181,386.44 = 104,976.60 : x
  2. Step 2: Convert to fraction form
    121,510.32/181,386.44 = 104,976.60/x
  3. Step 3: Cross multiply
    121,510.32x = 181,386.44 × 104,976.60
  4. Step 4: Simplify right side
    121,510.32x = 19,041,331,232.42
  5. Step 5: Solve for x
    x = 19,041,331,232.42/121,510.32
  6. Step 6: Final answer
    x = 156,705.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.