Home / 103,650.98-143,036.62-58,328.91

Finding the Fourth Proportional to 103,650.98, 143,036.62 and 58,328.91

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Solution

The fourth proportional to 103,650.98, 143,036.62 and 58,328.91 is: 80,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,650.98 : 143,036.62 = 58,328.91 : x
  2. Step 2: Convert to fraction form
    103,650.98/143,036.62 = 58,328.91/x
  3. Step 3: Cross multiply
    103,650.98x = 143,036.62 × 58,328.91
  4. Step 4: Simplify right side
    103,650.98x = 8,343,169,988.86
  5. Step 5: Solve for x
    x = 8,343,169,988.86/103,650.98
  6. Step 6: Final answer
    x = 80,492.92

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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.