Home / 112,421.60-168,632.40-29,315.60

Finding the Fourth Proportional to 112,421.60, 168,632.40 and 29,315.60

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Solution

The fourth proportional to 112,421.60, 168,632.40 and 29,315.60 is: 43,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,421.60 : 168,632.40 = 29,315.60 : x
  2. Step 2: Convert to fraction form
    112,421.60/168,632.40 = 29,315.60/x
  3. Step 3: Cross multiply
    112,421.60x = 168,632.40 × 29,315.60
  4. Step 4: Simplify right side
    112,421.60x = 4,943,559,985.44
  5. Step 5: Solve for x
    x = 4,943,559,985.44/112,421.60
  6. Step 6: Final answer
    x = 43,973.40

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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.