Home / 212,015.80-318,023.70-93,561.40

Finding the Fourth Proportional to 212,015.80, 318,023.70 and 93,561.40

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Solution

The fourth proportional to 212,015.80, 318,023.70 and 93,561.40 is: 140,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,015.80 : 318,023.70 = 93,561.40 : x
  2. Step 2: Convert to fraction form
    212,015.80/318,023.70 = 93,561.40/x
  3. Step 3: Cross multiply
    212,015.80x = 318,023.70 × 93,561.40
  4. Step 4: Simplify right side
    212,015.80x = 29,754,742,605.18
  5. Step 5: Solve for x
    x = 29,754,742,605.18/212,015.80
  6. Step 6: Final answer
    x = 140,342.10

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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.