Home / 112,779.04-155,634.88-62,478.08

Finding the Fourth Proportional to 112,779.04, 155,634.88 and 62,478.08

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Solution

The fourth proportional to 112,779.04, 155,634.88 and 62,478.08 is: 86,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,779.04 : 155,634.88 = 62,478.08 : x
  2. Step 2: Convert to fraction form
    112,779.04/155,634.88 = 62,478.08/x
  3. Step 3: Cross multiply
    112,779.04x = 155,634.88 × 62,478.08
  4. Step 4: Simplify right side
    112,779.04x = 9,723,768,483.43
  5. Step 5: Solve for x
    x = 9,723,768,483.43/112,779.04
  6. Step 6: Final answer
    x = 86,219.64

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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.