Home / 147,312.32-203,281.42-86,869.10

Finding the Fourth Proportional to 147,312.32, 203,281.42 and 86,869.10

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Solution

The fourth proportional to 147,312.32, 203,281.42 and 86,869.10 is: 119,873.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,312.32 : 203,281.42 = 86,869.10 : x
  2. Step 2: Convert to fraction form
    147,312.32/203,281.42 = 86,869.10/x
  3. Step 3: Cross multiply
    147,312.32x = 203,281.42 × 86,869.10
  4. Step 4: Simplify right side
    147,312.32x = 17,658,874,002.12
  5. Step 5: Solve for x
    x = 17,658,874,002.12/147,312.32
  6. Step 6: Final answer
    x = 119,873.71

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1.5x scale

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.