Home / 142,765,201-197,017,158.36-77,575,105

Finding the Fourth Proportional to 142,765,201, 197,017,158.36 and 77,575,105

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Solution

The fourth proportional to 142,765,201, 197,017,158.36 and 77,575,105 is: 107,054,286.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,765,201 : 197,017,158.36 = 77,575,105 : x
  2. Step 2: Convert to fraction form
    142,765,201/197,017,158.36 = 77,575,105/x
  3. Step 3: Cross multiply
    142,765,201x = 197,017,158.36 × 77,575,105
  4. Step 4: Simplify right side
    142,765,201x = 15,283,626,746,578,628
  5. Step 5: Solve for x
    x = 15,283,626,746,578,628/142,765,201
  6. Step 6: Final answer
    x = 107,054,286.62

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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.