Home / 163,918.12-245,828.58-70,402

Finding the Fourth Proportional to 163,918.12, 245,828.58 and 70,402

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Solution

The fourth proportional to 163,918.12, 245,828.58 and 70,402 is: 105,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,918.12 : 245,828.58 = 70,402 : x
  2. Step 2: Convert to fraction form
    163,918.12/245,828.58 = 70,402/x
  3. Step 3: Cross multiply
    163,918.12x = 245,828.58 × 70,402
  4. Step 4: Simplify right side
    163,918.12x = 17,306,823,689.16
  5. Step 5: Solve for x
    x = 17,306,823,689.16/163,918.12
  6. Step 6: Final answer
    x = 105,582.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.