Home / 109,312.04-163,968.08-84,388.47

Finding the Fourth Proportional to 109,312.04, 163,968.08 and 84,388.47

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Solution

The fourth proportional to 109,312.04, 163,968.08 and 84,388.47 is: 126,582.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,312.04 : 163,968.08 = 84,388.47 : x
  2. Step 2: Convert to fraction form
    109,312.04/163,968.08 = 84,388.47/x
  3. Step 3: Cross multiply
    109,312.04x = 163,968.08 × 84,388.47
  4. Step 4: Simplify right side
    109,312.04x = 13,837,014,978.10
  5. Step 5: Solve for x
    x = 13,837,014,978.10/109,312.04
  6. Step 6: Final answer
    x = 126,582.72

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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.