Home / 157,015.08-216,671.90-85,395.11

Finding the Fourth Proportional to 157,015.08, 216,671.90 and 85,395.11

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Solution

The fourth proportional to 157,015.08, 216,671.90 and 85,395.11 is: 117,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,015.08 : 216,671.90 = 85,395.11 : x
  2. Step 2: Convert to fraction form
    157,015.08/216,671.90 = 85,395.11/x
  3. Step 3: Cross multiply
    157,015.08x = 216,671.90 × 85,395.11
  4. Step 4: Simplify right side
    157,015.08x = 18,502,719,224.07
  5. Step 5: Solve for x
    x = 18,502,719,224.07/157,015.08
  6. Step 6: Final answer
    x = 117,840.40

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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.