Home / 98,435.40-147,653.10-90,832.20

Finding the Fourth Proportional to 98,435.40, 147,653.10 and 90,832.20

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Solution

The fourth proportional to 98,435.40, 147,653.10 and 90,832.20 is: 136,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,435.40 : 147,653.10 = 90,832.20 : x
  2. Step 2: Convert to fraction form
    98,435.40/147,653.10 = 90,832.20/x
  3. Step 3: Cross multiply
    98,435.40x = 147,653.10 × 90,832.20
  4. Step 4: Simplify right side
    98,435.40x = 13,411,655,909.82
  5. Step 5: Solve for x
    x = 13,411,655,909.82/98,435.40
  6. Step 6: Final answer
    x = 136,248.30

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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.