Home / 105,613.70-145,746.93-63,182.25

Finding the Fourth Proportional to 105,613.70, 145,746.93 and 63,182.25

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Solution

The fourth proportional to 105,613.70, 145,746.93 and 63,182.25 is: 87,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,613.70 : 145,746.93 = 63,182.25 : x
  2. Step 2: Convert to fraction form
    105,613.70/145,746.93 = 63,182.25/x
  3. Step 3: Cross multiply
    105,613.70x = 145,746.93 × 63,182.25
  4. Step 4: Simplify right side
    105,613.70x = 9,208,618,967.99
  5. Step 5: Solve for x
    x = 9,208,618,967.99/105,613.70
  6. Step 6: Final answer
    x = 87,191.52

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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.