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Finding the Fourth Proportional to 145,995, 201,473.58 and 78,927.48

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Solution

The fourth proportional to 145,995, 201,473.58 and 78,927.48 is: 108,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,995 : 201,473.58 = 78,927.48 : x
  2. Step 2: Convert to fraction form
    145,995/201,473.58 = 78,927.48/x
  3. Step 3: Cross multiply
    145,995x = 201,473.58 × 78,927.48
  4. Step 4: Simplify right side
    145,995x = 15,901,801,955.98
  5. Step 5: Solve for x
    x = 15,901,801,955.98/145,995
  6. Step 6: Final answer
    x = 108,920.18

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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.