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Finding the Fourth Proportional to 152,655.03, 210,663.99 and 85,587.03

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Solution

The fourth proportional to 152,655.03, 210,663.99 and 85,587.03 is: 118,110.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,655.03 : 210,663.99 = 85,587.03 : x
  2. Step 2: Convert to fraction form
    152,655.03/210,663.99 = 85,587.03/x
  3. Step 3: Cross multiply
    152,655.03x = 210,663.99 × 85,587.03
  4. Step 4: Simplify right side
    152,655.03x = 18,030,105,232.05
  5. Step 5: Solve for x
    x = 18,030,105,232.05/152,655.03
  6. Step 6: Final answer
    x = 118,110.13

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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.