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Finding the Fourth Proportional to 101,802.32, 140,484.36 and 56,480.08

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Solution

The fourth proportional to 101,802.32, 140,484.36 and 56,480.08 is: 77,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,802.32 : 140,484.36 = 56,480.08 : x
  2. Step 2: Convert to fraction form
    101,802.32/140,484.36 = 56,480.08/x
  3. Step 3: Cross multiply
    101,802.32x = 140,484.36 × 56,480.08
  4. Step 4: Simplify right side
    101,802.32x = 7,934,567,891.55
  5. Step 5: Solve for x
    x = 7,934,567,891.55/101,802.32
  6. Step 6: Final answer
    x = 77,940.93

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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.