Home / 98,803.28-136,361.40-56,370.08

Finding the Fourth Proportional to 98,803.28, 136,361.40 and 56,370.08

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Solution

The fourth proportional to 98,803.28, 136,361.40 and 56,370.08 is: 77,798.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,803.28 : 136,361.40 = 56,370.08 : x
  2. Step 2: Convert to fraction form
    98,803.28/136,361.40 = 56,370.08/x
  3. Step 3: Cross multiply
    98,803.28x = 136,361.40 × 56,370.08
  4. Step 4: Simplify right side
    98,803.28x = 7,686,703,026.91
  5. Step 5: Solve for x
    x = 7,686,703,026.91/98,803.28
  6. Step 6: Final answer
    x = 77,798.06

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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.