Home / 121,220.16-181,582.36-98,810.72

Finding the Fourth Proportional to 121,220.16, 181,582.36 and 98,810.72

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Solution

The fourth proportional to 121,220.16, 181,582.36 and 98,810.72 is: 148,014.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,220.16 : 181,582.36 = 98,810.72 : x
  2. Step 2: Convert to fraction form
    121,220.16/181,582.36 = 98,810.72/x
  3. Step 3: Cross multiply
    121,220.16x = 181,582.36 × 98,810.72
  4. Step 4: Simplify right side
    121,220.16x = 17,942,283,730.90
  5. Step 5: Solve for x
    x = 17,942,283,730.90/121,220.16
  6. Step 6: Final answer
    x = 148,014.02

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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.