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Finding the Fourth Proportional to 152,774.47, 210,831.02 and 84,795.81

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Solution

The fourth proportional to 152,774.47, 210,831.02 and 84,795.81 is: 117,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,774.47 : 210,831.02 = 84,795.81 : x
  2. Step 2: Convert to fraction form
    152,774.47/210,831.02 = 84,795.81/x
  3. Step 3: Cross multiply
    152,774.47x = 210,831.02 × 84,795.81
  4. Step 4: Simplify right side
    152,774.47x = 17,877,587,114.03
  5. Step 5: Solve for x
    x = 17,877,587,114.03/152,774.47
  6. Step 6: Final answer
    x = 117,019.47

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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.