Home / 112,051.93-154,620.69-66,720.91

Finding the Fourth Proportional to 112,051.93, 154,620.69 and 66,720.91

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Solution

The fourth proportional to 112,051.93, 154,620.69 and 66,720.91 is: 92,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,051.93 : 154,620.69 = 66,720.91 : x
  2. Step 2: Convert to fraction form
    112,051.93/154,620.69 = 66,720.91/x
  3. Step 3: Cross multiply
    112,051.93x = 154,620.69 × 66,720.91
  4. Step 4: Simplify right side
    112,051.93x = 10,316,433,141.63
  5. Step 5: Solve for x
    x = 10,316,433,141.63/112,051.93
  6. Step 6: Final answer
    x = 92,068.32

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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.