Home / 109,308.02-163,962.04-30,428.40

Finding the Fourth Proportional to 109,308.02, 163,962.04 and 30,428.40

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Solution

The fourth proportional to 109,308.02, 163,962.04 and 30,428.40 is: 45,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,308.02 : 163,962.04 = 30,428.40 : x
  2. Step 2: Convert to fraction form
    109,308.02/163,962.04 = 30,428.40/x
  3. Step 3: Cross multiply
    109,308.02x = 163,962.04 × 30,428.40
  4. Step 4: Simplify right side
    109,308.02x = 4,989,102,537.94
  5. Step 5: Solve for x
    x = 4,989,102,537.94/109,308.02
  6. Step 6: Final answer
    x = 45,642.60

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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.