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Finding the Fourth Proportional to 145,639.16, 201,014.82 and 95,309

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Solution

The fourth proportional to 145,639.16, 201,014.82 and 95,309 is: 131,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,639.16 : 201,014.82 = 95,309 : x
  2. Step 2: Convert to fraction form
    145,639.16/201,014.82 = 95,309/x
  3. Step 3: Cross multiply
    145,639.16x = 201,014.82 × 95,309
  4. Step 4: Simplify right side
    145,639.16x = 19,158,521,479.38
  5. Step 5: Solve for x
    x = 19,158,521,479.38/145,639.16
  6. Step 6: Final answer
    x = 131,547.87

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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.