Home / 109,287.40-163,931.10-97,477.60

Finding the Fourth Proportional to 109,287.40, 163,931.10 and 97,477.60

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Solution

The fourth proportional to 109,287.40, 163,931.10 and 97,477.60 is: 146,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,287.40 : 163,931.10 = 97,477.60 : x
  2. Step 2: Convert to fraction form
    109,287.40/163,931.10 = 97,477.60/x
  3. Step 3: Cross multiply
    109,287.40x = 163,931.10 × 97,477.60
  4. Step 4: Simplify right side
    109,287.40x = 15,979,610,193.36
  5. Step 5: Solve for x
    x = 15,979,610,193.36/109,287.40
  6. Step 6: Final answer
    x = 146,216.40

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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.