Home / 112,774.16-155,625.95-61,784.40

Finding the Fourth Proportional to 112,774.16, 155,625.95 and 61,784.40

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Solution

The fourth proportional to 112,774.16, 155,625.95 and 61,784.40 is: 85,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.16 : 155,625.95 = 61,784.40 : x
  2. Step 2: Convert to fraction form
    112,774.16/155,625.95 = 61,784.40/x
  3. Step 3: Cross multiply
    112,774.16x = 155,625.95 × 61,784.40
  4. Step 4: Simplify right side
    112,774.16x = 9,615,255,636.26
  5. Step 5: Solve for x
    x = 9,615,255,636.26/112,774.16
  6. Step 6: Final answer
    x = 85,261.16

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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.