Home / 155,389.08-214,359.30-98,099.40

Finding the Fourth Proportional to 155,389.08, 214,359.30 and 98,099.40

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Solution

The fourth proportional to 155,389.08, 214,359.30 and 98,099.40 is: 135,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,389.08 : 214,359.30 = 98,099.40 : x
  2. Step 2: Convert to fraction form
    155,389.08/214,359.30 = 98,099.40/x
  3. Step 3: Cross multiply
    155,389.08x = 214,359.30 × 98,099.40
  4. Step 4: Simplify right side
    155,389.08x = 21,028,518,714.42
  5. Step 5: Solve for x
    x = 21,028,518,714.42/155,389.08
  6. Step 6: Final answer
    x = 135,328.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.