Home / 102,459.42-141,390.66-56,518.95

Finding the Fourth Proportional to 102,459.42, 141,390.66 and 56,518.95

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Solution

The fourth proportional to 102,459.42, 141,390.66 and 56,518.95 is: 77,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,459.42 : 141,390.66 = 56,518.95 : x
  2. Step 2: Convert to fraction form
    102,459.42/141,390.66 = 56,518.95/x
  3. Step 3: Cross multiply
    102,459.42x = 141,390.66 × 56,518.95
  4. Step 4: Simplify right side
    102,459.42x = 7,991,251,643.01
  5. Step 5: Solve for x
    x = 7,991,251,643.01/102,459.42
  6. Step 6: Final answer
    x = 77,994.31

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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.