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Finding the Fourth Proportional to 118,547.18, 177,783.74 and 39,642.98

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Solution

The fourth proportional to 118,547.18, 177,783.74 and 39,642.98 is: 59,452.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,547.18 : 177,783.74 = 39,642.98 : x
  2. Step 2: Convert to fraction form
    118,547.18/177,783.74 = 39,642.98/x
  3. Step 3: Cross multiply
    118,547.18x = 177,783.74 × 39,642.98
  4. Step 4: Simplify right side
    118,547.18x = 7,047,876,459.33
  5. Step 5: Solve for x
    x = 7,047,876,459.33/118,547.18
  6. Step 6: Final answer
    x = 59,452.08

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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.