Home / 113,875.84-170,820-47,322.64

Finding the Fourth Proportional to 113,875.84, 170,820 and 47,322.64

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Solution

The fourth proportional to 113,875.84, 170,820 and 47,322.64 is: 70,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,875.84 : 170,820 = 47,322.64 : x
  2. Step 2: Convert to fraction form
    113,875.84/170,820 = 47,322.64/x
  3. Step 3: Cross multiply
    113,875.84x = 170,820 × 47,322.64
  4. Step 4: Simplify right side
    113,875.84x = 8,083,653,364.80
  5. Step 5: Solve for x
    x = 8,083,653,364.80/113,875.84
  6. Step 6: Final answer
    x = 70,986.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.