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Finding the Fourth Proportional to 111,307.86, 153,628.06 and 102,341.16

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Solution

The fourth proportional to 111,307.86, 153,628.06 and 102,341.16 is: 141,252.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,307.86 : 153,628.06 = 102,341.16 : x
  2. Step 2: Convert to fraction form
    111,307.86/153,628.06 = 102,341.16/x
  3. Step 3: Cross multiply
    111,307.86x = 153,628.06 × 102,341.16
  4. Step 4: Simplify right side
    111,307.86x = 15,722,473,868.95
  5. Step 5: Solve for x
    x = 15,722,473,868.95/111,307.86
  6. Step 6: Final answer
    x = 141,252.14

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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.