Home / 98,637.21-136,119.08-56,196.05

Finding the Fourth Proportional to 98,637.21, 136,119.08 and 56,196.05

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Solution

The fourth proportional to 98,637.21, 136,119.08 and 56,196.05 is: 77,550.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,637.21 : 136,119.08 = 56,196.05 : x
  2. Step 2: Convert to fraction form
    98,637.21/136,119.08 = 56,196.05/x
  3. Step 3: Cross multiply
    98,637.21x = 136,119.08 × 56,196.05
  4. Step 4: Simplify right side
    98,637.21x = 7,649,354,085.53
  5. Step 5: Solve for x
    x = 7,649,354,085.53/98,637.21
  6. Step 6: Final answer
    x = 77,550.39

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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.