Home / 191,030.16-263,619.72-106,145.40

Finding the Fourth Proportional to 191,030.16, 263,619.72 and 106,145.40

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Solution

The fourth proportional to 191,030.16, 263,619.72 and 106,145.40 is: 146,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,030.16 : 263,619.72 = 106,145.40 : x
  2. Step 2: Convert to fraction form
    191,030.16/263,619.72 = 106,145.40/x
  3. Step 3: Cross multiply
    191,030.16x = 263,619.72 × 106,145.40
  4. Step 4: Simplify right side
    191,030.16x = 27,982,020,627.29
  5. Step 5: Solve for x
    x = 27,982,020,627.29/191,030.16
  6. Step 6: Final answer
    x = 146,479.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.