Home / 212,178.81-318,333.95-73,547.70

Finding the Fourth Proportional to 212,178.81, 318,333.95 and 73,547.70

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Solution

The fourth proportional to 212,178.81, 318,333.95 and 73,547.70 is: 110,344.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,178.81 : 318,333.95 = 73,547.70 : x
  2. Step 2: Convert to fraction form
    212,178.81/318,333.95 = 73,547.70/x
  3. Step 3: Cross multiply
    212,178.81x = 318,333.95 × 73,547.70
  4. Step 4: Simplify right side
    212,178.81x = 23,412,729,925.02
  5. Step 5: Solve for x
    x = 23,412,729,925.02/212,178.81
  6. Step 6: Final answer
    x = 110,344.34

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1.5x scale

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.