Home / 102,324.90-153,815.40-72,946.20

Finding the Fourth Proportional to 102,324.90, 153,815.40 and 72,946.20

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Solution

The fourth proportional to 102,324.90, 153,815.40 and 72,946.20 is: 109,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,324.90 : 153,815.40 = 72,946.20 : x
  2. Step 2: Convert to fraction form
    102,324.90/153,815.40 = 72,946.20/x
  3. Step 3: Cross multiply
    102,324.90x = 153,815.40 × 72,946.20
  4. Step 4: Simplify right side
    102,324.90x = 11,220,248,931.48
  5. Step 5: Solve for x
    x = 11,220,248,931.48/102,324.90
  6. Step 6: Final answer
    x = 109,653.16

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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.