Home / 286,763.29-430,145.64-87,085.19

Finding the Fourth Proportional to 286,763.29, 430,145.64 and 87,085.19

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Solution

The fourth proportional to 286,763.29, 430,145.64 and 87,085.19 is: 130,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,763.29 : 430,145.64 = 87,085.19 : x
  2. Step 2: Convert to fraction form
    286,763.29/430,145.64 = 87,085.19/x
  3. Step 3: Cross multiply
    286,763.29x = 430,145.64 × 87,085.19
  4. Step 4: Simplify right side
    286,763.29x = 37,459,315,862.44
  5. Step 5: Solve for x
    x = 37,459,315,862.44/286,763.29
  6. Step 6: Final answer
    x = 130,628.00

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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.