Home / 142,113.74-213,120.57-47,318.18

Finding the Fourth Proportional to 142,113.74, 213,120.57 and 47,318.18

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Solution

The fourth proportional to 142,113.74, 213,120.57 and 47,318.18 is: 70,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,113.74 : 213,120.57 = 47,318.18 : x
  2. Step 2: Convert to fraction form
    142,113.74/213,120.57 = 47,318.18/x
  3. Step 3: Cross multiply
    142,113.74x = 213,120.57 × 47,318.18
  4. Step 4: Simplify right side
    142,113.74x = 10,084,477,492.96
  5. Step 5: Solve for x
    x = 10,084,477,492.96/142,113.74
  6. Step 6: Final answer
    x = 70,960.61

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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.