Home / 115,547.64-159,439.84-64,554.04

Finding the Fourth Proportional to 115,547.64, 159,439.84 and 64,554.04

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Solution

The fourth proportional to 115,547.64, 159,439.84 and 64,554.04 is: 89,075.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,547.64 : 159,439.84 = 64,554.04 : x
  2. Step 2: Convert to fraction form
    115,547.64/159,439.84 = 64,554.04/x
  3. Step 3: Cross multiply
    115,547.64x = 159,439.84 × 64,554.04
  4. Step 4: Simplify right side
    115,547.64x = 10,292,485,808.95
  5. Step 5: Solve for x
    x = 10,292,485,808.95/115,547.64
  6. Step 6: Final answer
    x = 89,075.69

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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.