Home / 103,013,921.32-142,159,178.88-56,607,164.60

Finding the Fourth Proportional to 103,013,921.32, 142,159,178.88 and 56,607,164.60

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Solution

The fourth proportional to 103,013,921.32, 142,159,178.88 and 56,607,164.60 is: 78,117,869.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,013,921.32 : 142,159,178.88 = 56,607,164.60 : x
  2. Step 2: Convert to fraction form
    103,013,921.32/142,159,178.88 = 56,607,164.60/x
  3. Step 3: Cross multiply
    103,013,921.32x = 142,159,178.88 × 56,607,164.60
  4. Step 4: Simplify right side
    103,013,921.32x = 8,047,228,038,261,004
  5. Step 5: Solve for x
    x = 8,047,228,038,261,004/103,013,921.32
  6. Step 6: Final answer
    x = 78,117,869.27

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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.