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Finding the Fourth Proportional to 145,925.88, 201,377.94 and 78,857.88

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Solution

The fourth proportional to 145,925.88, 201,377.94 and 78,857.88 is: 108,824.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,925.88 : 201,377.94 = 78,857.88 : x
  2. Step 2: Convert to fraction form
    145,925.88/201,377.94 = 78,857.88/x
  3. Step 3: Cross multiply
    145,925.88x = 201,377.94 × 78,857.88
  4. Step 4: Simplify right side
    145,925.88x = 15,880,237,427.17
  5. Step 5: Solve for x
    x = 15,880,237,427.17/145,925.88
  6. Step 6: Final answer
    x = 108,824.00

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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.