Home / 112,682.30-155,536.16-64,967.40

Finding the Fourth Proportional to 112,682.30, 155,536.16 and 64,967.40

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Solution

The fourth proportional to 112,682.30, 155,536.16 and 64,967.40 is: 89,674.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,682.30 : 155,536.16 = 64,967.40 : x
  2. Step 2: Convert to fraction form
    112,682.30/155,536.16 = 64,967.40/x
  3. Step 3: Cross multiply
    112,682.30x = 155,536.16 × 64,967.40
  4. Step 4: Simplify right side
    112,682.30x = 10,104,779,596.35
  5. Step 5: Solve for x
    x = 10,104,779,596.35/112,682.30
  6. Step 6: Final answer
    x = 89,674.95

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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.