Home / 142,343.87-196,307.29-118,106.45

Finding the Fourth Proportional to 142,343.87, 196,307.29 and 118,106.45

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Solution

The fourth proportional to 142,343.87, 196,307.29 and 118,106.45 is: 162,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,343.87 : 196,307.29 = 118,106.45 : x
  2. Step 2: Convert to fraction form
    142,343.87/196,307.29 = 118,106.45/x
  3. Step 3: Cross multiply
    142,343.87x = 196,307.29 × 118,106.45
  4. Step 4: Simplify right side
    142,343.87x = 23,185,157,131.02
  5. Step 5: Solve for x
    x = 23,185,157,131.02/142,343.87
  6. Step 6: Final answer
    x = 162,881.32

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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.