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Finding the Fourth Proportional to 105,108.59, 145,050.26 and 57,363

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Solution

The fourth proportional to 105,108.59, 145,050.26 and 57,363 is: 79,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,108.59 : 145,050.26 = 57,363 : x
  2. Step 2: Convert to fraction form
    105,108.59/145,050.26 = 57,363/x
  3. Step 3: Cross multiply
    105,108.59x = 145,050.26 × 57,363
  4. Step 4: Simplify right side
    105,108.59x = 8,320,518,064.38
  5. Step 5: Solve for x
    x = 8,320,518,064.38/105,108.59
  6. Step 6: Final answer
    x = 79,161.16

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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.