Home / 102,486.08-153,554.16-55,655.12

Finding the Fourth Proportional to 102,486.08, 153,554.16 and 55,655.12

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Solution

The fourth proportional to 102,486.08, 153,554.16 and 55,655.12 is: 83,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,486.08 : 153,554.16 = 55,655.12 : x
  2. Step 2: Convert to fraction form
    102,486.08/153,554.16 = 55,655.12/x
  3. Step 3: Cross multiply
    102,486.08x = 153,554.16 × 55,655.12
  4. Step 4: Simplify right side
    102,486.08x = 8,546,075,201.30
  5. Step 5: Solve for x
    x = 8,546,075,201.30/102,486.08
  6. Step 6: Final answer
    x = 83,387.67

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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.