Home / 103,210.86-142,429.13-57,888.93

Finding the Fourth Proportional to 103,210.86, 142,429.13 and 57,888.93

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Solution

The fourth proportional to 103,210.86, 142,429.13 and 57,888.93 is: 79,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,210.86 : 142,429.13 = 57,888.93 : x
  2. Step 2: Convert to fraction form
    103,210.86/142,429.13 = 57,888.93/x
  3. Step 3: Cross multiply
    103,210.86x = 142,429.13 × 57,888.93
  4. Step 4: Simplify right side
    103,210.86x = 8,245,069,936.53
  5. Step 5: Solve for x
    x = 8,245,069,936.53/103,210.86
  6. Step 6: Final answer
    x = 79,885.68

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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.