Home / 103,764.60-155,547.27-66,218.67

Finding the Fourth Proportional to 103,764.60, 155,547.27 and 66,218.67

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Solution

The fourth proportional to 103,764.60, 155,547.27 and 66,218.67 is: 99,264.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,764.60 : 155,547.27 = 66,218.67 : x
  2. Step 2: Convert to fraction form
    103,764.60/155,547.27 = 66,218.67/x
  3. Step 3: Cross multiply
    103,764.60x = 155,547.27 × 66,218.67
  4. Step 4: Simplify right side
    103,764.60x = 10,300,133,341.53
  5. Step 5: Solve for x
    x = 10,300,133,341.53/103,764.60
  6. Step 6: Final answer
    x = 99,264.42

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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.