Home / 103,539,728.94-142,887,816.63-57,132,971.34

Finding the Fourth Proportional to 103,539,728.94, 142,887,816.63 and 57,132,971.34

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Solution

The fourth proportional to 103,539,728.94, 142,887,816.63 and 57,132,971.34 is: 78,845,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,539,728.94 : 142,887,816.63 = 57,132,971.34 : x
  2. Step 2: Convert to fraction form
    103,539,728.94/142,887,816.63 = 57,132,971.34/x
  3. Step 3: Cross multiply
    103,539,728.94x = 142,887,816.63 × 57,132,971.34
  4. Step 4: Simplify right side
    103,539,728.94x = 8,163,605,532,356,966
  5. Step 5: Solve for x
    x = 8,163,605,532,356,966/103,539,728.94
  6. Step 6: Final answer
    x = 78,845,150.71

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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.