Home / 142,345.64-213,445.83-47,541.68

Finding the Fourth Proportional to 142,345.64, 213,445.83 and 47,541.68

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Solution

The fourth proportional to 142,345.64, 213,445.83 and 47,541.68 is: 71,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,345.64 : 213,445.83 = 47,541.68 : x
  2. Step 2: Convert to fraction form
    142,345.64/213,445.83 = 47,541.68/x
  3. Step 3: Cross multiply
    142,345.64x = 213,445.83 × 47,541.68
  4. Step 4: Simplify right side
    142,345.64x = 10,147,573,347.19
  5. Step 5: Solve for x
    x = 10,147,573,347.19/142,345.64
  6. Step 6: Final answer
    x = 71,288.26

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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.