Home / 111,172.50-153,417.86-60,185.20

Finding the Fourth Proportional to 111,172.50, 153,417.86 and 60,185.20

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Solution

The fourth proportional to 111,172.50, 153,417.86 and 60,185.20 is: 83,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,172.50 : 153,417.86 = 60,185.20 : x
  2. Step 2: Convert to fraction form
    111,172.50/153,417.86 = 60,185.20/x
  3. Step 3: Cross multiply
    111,172.50x = 153,417.86 × 60,185.20
  4. Step 4: Simplify right side
    111,172.50x = 9,233,484,587.67
  5. Step 5: Solve for x
    x = 9,233,484,587.67/111,172.50
  6. Step 6: Final answer
    x = 83,055.47

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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.