Home / 126,388,721.15-174,421,821.75-70,634,139.93

Finding the Fourth Proportional to 126,388,721.15, 174,421,821.75 and 70,634,139.93

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Solution

The fourth proportional to 126,388,721.15, 174,421,821.75 and 70,634,139.93 is: 97,478,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,388,721.15 : 174,421,821.75 = 70,634,139.93 : x
  2. Step 2: Convert to fraction form
    126,388,721.15/174,421,821.75 = 70,634,139.93/x
  3. Step 3: Cross multiply
    126,388,721.15x = 174,421,821.75 × 70,634,139.93
  4. Step 4: Simplify right side
    126,388,721.15x = 12,320,135,364,335,018
  5. Step 5: Solve for x
    x = 12,320,135,364,335,018/126,388,721.15
  6. Step 6: Final answer
    x = 97,478,123.46

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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.