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Finding the Fourth Proportional to 145,302.95, 200,448.25 and 125,124.81

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Solution

The fourth proportional to 145,302.95, 200,448.25 and 125,124.81 is: 172,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,302.95 : 200,448.25 = 125,124.81 : x
  2. Step 2: Convert to fraction form
    145,302.95/200,448.25 = 125,124.81/x
  3. Step 3: Cross multiply
    145,302.95x = 200,448.25 × 125,124.81
  4. Step 4: Simplify right side
    145,302.95x = 25,081,048,835.42
  5. Step 5: Solve for x
    x = 25,081,048,835.42/145,302.95
  6. Step 6: Final answer
    x = 172,612.11

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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.