Home / 136,626.61-188,547.14-76,190.76

Finding the Fourth Proportional to 136,626.61, 188,547.14 and 76,190.76

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Solution

The fourth proportional to 136,626.61, 188,547.14 and 76,190.76 is: 105,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,626.61 : 188,547.14 = 76,190.76 : x
  2. Step 2: Convert to fraction form
    136,626.61/188,547.14 = 76,190.76/x
  3. Step 3: Cross multiply
    136,626.61x = 188,547.14 × 76,190.76
  4. Step 4: Simplify right side
    136,626.61x = 14,365,549,797.19
  5. Step 5: Solve for x
    x = 14,365,549,797.19/136,626.61
  6. Step 6: Final answer
    x = 105,144.60

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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.