Home / 103,690.38-143,095.96-58,981.26

Finding the Fourth Proportional to 103,690.38, 143,095.96 and 58,981.26

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Solution

The fourth proportional to 103,690.38, 143,095.96 and 58,981.26 is: 81,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690.38 : 143,095.96 = 58,981.26 : x
  2. Step 2: Convert to fraction form
    103,690.38/143,095.96 = 58,981.26/x
  3. Step 3: Cross multiply
    103,690.38x = 143,095.96 × 58,981.26
  4. Step 4: Simplify right side
    103,690.38x = 8,439,980,021.71
  5. Step 5: Solve for x
    x = 8,439,980,021.71/103,690.38
  6. Step 6: Final answer
    x = 81,395.98

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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.