Home / 103,342.37-142,607.79-58,019.51

Finding the Fourth Proportional to 103,342.37, 142,607.79 and 58,019.51

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Solution

The fourth proportional to 103,342.37, 142,607.79 and 58,019.51 is: 80,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,342.37 : 142,607.79 = 58,019.51 : x
  2. Step 2: Convert to fraction form
    103,342.37/142,607.79 = 58,019.51/x
  3. Step 3: Cross multiply
    103,342.37x = 142,607.79 × 58,019.51
  4. Step 4: Simplify right side
    103,342.37x = 8,274,034,454.50
  5. Step 5: Solve for x
    x = 8,274,034,454.50/103,342.37
  6. Step 6: Final answer
    x = 80,064.30

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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.