Home / 112,690.36-155,507.90-61,702.16

Finding the Fourth Proportional to 112,690.36, 155,507.90 and 61,702.16

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Solution

The fourth proportional to 112,690.36, 155,507.90 and 61,702.16 is: 85,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,690.36 : 155,507.90 = 61,702.16 : x
  2. Step 2: Convert to fraction form
    112,690.36/155,507.90 = 61,702.16/x
  3. Step 3: Cross multiply
    112,690.36x = 155,507.90 × 61,702.16
  4. Step 4: Simplify right side
    112,690.36x = 9,595,173,327.06
  5. Step 5: Solve for x
    x = 9,595,173,327.06/112,690.36
  6. Step 6: Final answer
    x = 85,146.35

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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.